High resolution spectroscopy of an atomic vapour confined in an opal of glass nanosphere

Abstract

In the spirit of our systematic investigation of resonant atomic vapour (Cs vapour) in micro-and nano-cells (1D confinement), we investigate the behaviour of a vapour confined in the nanometric interstitial regions of an opal made of glass spheres (3D confinement). Sub-Doppler lines are observed in preliminary experiment